One of the first things we do when engaging with new clients is to discuss the hiring process and determine what steps to include in their hiring process. In order to get a complete picture of a candidate, we often include several different stages and assessments. For example, we might include an initial application, an in-depth online assessment, a work sample exercise, and an interview as part of the process. Pulling together all of this information, we can see how the candidate performs on important competencies in different types of assessment methods.
When determining which steps are most appropriate for the position and the organization, clients often ask, is more always better? Does having more stages in the process provide a greater return on investment? The answer is … it depends. In answering this question, we often look at incremental validity. Before talking specifically about incremental validity, let me provide a refresher on what validity is.